Ch8.5 Rusting
Quiz by Alison Tandy
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7 questions
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- Q1Compared to a combustion reaction (explosion or fire), rusting is:a slow reactionthe same rate of reactiona fast reaction30s
- Q2What is meant by the word 'corrosion'?A reaction that is fast and explosive.A reaction when substances 'eat away' at another substance.A reaction when substances combines to make them stronger.30s
- Q3Salt acts like a catalyst for rusting because it:slows down the reaction and is used upslows down the reaction but is not used upspeeds up the reaction and is used upspeeds up the reaction but is not used up30s
- Q4What are the two main reactants that combine with iron to produce rust?salt and oxygenwater and saltwater and oxygen30s
- Q5The rusting reaction of iron can be represented by which word equation?iron + rust --> water + oxygeniron + water + oxygen --> rustrust --> iron + water + oxygen30s
- Q6What is one way to protect iron from rusting?Spraying it with salt waterCoating it in a more reactive metal like zincHeating up the ironCoating it in a less reactive metal like copper30s
- Q7Rusting will slow down when you put iron in a:Salty environmentDry environmentWet environment30s